hi to alli desperately seek for a software that can give me when my smarts roadster knock corrects.i have checked the web and found only solutions with external devices but i need knock correction to rpm diagram so i can do a proper tune in advance timing. i have contacted many companies with data logging software and the answer was that i must find logger which can work via manufacturer protocol and can access to my cars ECU additional parameters.can someone please give me a solution?thanks in advanceandreas